TeamViewer Forum

Hi, I have home internet connection like this: ISP -> Mikrotik -> Switch, and my PC (WinXP) connected to Switch. I tried to remote the PC from notebook (Win7) which is connected to Switch too and it worked. The option 'incoming LAN connections' is still 'deactivated'. When I tried to remote from my office (wireless connection), I got this error 'Protocol negotiation failed'. First, I think it caused by UAC but when I change the setting,I still got the same error message. Could you tell me what's wrong?